CN108714673A - Molding machine and method for controlling molding machine - Google Patents
Molding machine and method for controlling molding machine Download PDFInfo
- Publication number
- CN108714673A CN108714673A CN201810377557.5A CN201810377557A CN108714673A CN 108714673 A CN108714673 A CN 108714673A CN 201810377557 A CN201810377557 A CN 201810377557A CN 108714673 A CN108714673 A CN 108714673A
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- workpiece
- molding
- molding machine
- roll
- sensor
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- 238000000465 moulding Methods 0.000 title claims abstract description 112
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000005096 rolling process Methods 0.000 claims abstract description 47
- 238000007493 shaping process Methods 0.000 claims description 47
- 238000003801 milling Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 5
- 238000003856 thermoforming Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 1
- 230000007246 mechanism Effects 0.000 description 23
- 238000005259 measurement Methods 0.000 description 13
- 238000012544 monitoring process Methods 0.000 description 9
- 230000001276 controlling effect Effects 0.000 description 7
- 238000003384 imaging method Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000005242 forging Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002243 precursor Substances 0.000 description 3
- 239000011265 semifinished product Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000007688 edging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H1/00—Making articles shaped as bodies of revolution
- B21H1/06—Making articles shaped as bodies of revolution rings of restricted axial length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/10—Drives for forging presses
- B21J9/20—Control devices specially adapted to forging presses not restricted to one of the preceding subgroups
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/25—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. one or more lines, moiré fringes on the object
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B5/00—Extending closed shapes of metal bands by rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Forging (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The present invention provides a kind of molding machine, especially a kind of machine for rolling ring comprising cut sensor towards the light for the workpiece being arranged in the workspace of molding machine, which can accurately be worked with simple mechanical structure.The present invention also provides a kind of methods for controlling molding machine.
Description
The application is entitled " molding machine and the side for controlling molding machine application No. is 201510173351.7
The divisional application of method ".
Technical field
The present invention relates to a kind of molding machine and a kind of methods for controlling molding machine.The invention particularly relates to one kind rolling ring
Machine and a kind of method for controlling machine for rolling ring.
Background technology
Can be fully understood from from the prior art has corresponding molding machine in all applications of many aspects, is used for example as forging
Make machine, milling train, machine for rolling ring, extruder.In general, in the forming process of this kind of molding machine, precursor material (for example, especially prototype
Precursor material) be made into semi-finished product or semi-finished product are made into workpiece, wherein by corresponding shaping jig to each institute at
The workpiece (i.e. the precursor material, semi-finished product of prototype or other workpiece) of type applies power required thus and extruding.
It especially, can be fully from the prior art, such as patent document DE2504969A1 or DE3923275C2
Understand the control method of machine for rolling ring and such machine.Here, machine for rolling ring generally includes radial drive mechanism and at least one axial direction
Driving mechanism, the radial drive mechanism and the roll shaft of the radial roll acted in radial direction are operatively connected, and the axis
It is operatively connected to the roll shaft of driving mechanism and the axial roll acted in the axial direction.Here, as such as patent document
Described in DE2504969A1, axial roller is commonly used in carrying out workpiece to be rolled axial (i.e. along being parallel to annular workpieces
The direction of rotary shaft or symmetry axis) molding, and it is simultaneously or subsequently radially opposite to ring by radial roll thus
It either symmetry axis or is molded relative to its vertical axis in the rotary shaft of workpiece.Roll plug is usually total with radial roll
Same-action.
Herein it is understood that the roll with the roll shaft belonging to it is usually disposed as through corresponding radial drive machine
Either axial actuating mechanism is rotated or is controlled rotation to structure.In addition, this kind of molding machine further includes linear axes, usual hydraulic pressure
It adjusts and for example for setting these rolls relative to each other likes.Similarly, by corresponding linear axes also to others
Component, such as entrance guiding piece, roll plug or other components carry out corresponding fluid pressure type adjusting control.
Thus, for example having known in machine for rolling ring, forming process can be by mechanically incuding roller or carrying laser
The laser triangulation instrument of point is monitored, and if necessary can also be in a manner of controlling or adjust during the rolling process
Intervened.For very high ring or sleeve, up to three laser points can be used to be used for triangulation sometimes.
According to patent document DE3923275C2, forming step can also be imaged via shadow and is monitored by schlieren baffle, however this
It similarly can be complicated in the extreme in structure.
Invention content
The object of the present invention is to provide a kind of molding machine and a kind of methods for controlling molding machine, in simple machinery
It can also accurately be operated under structure.
The purpose of the present invention is by with such as feature that independent claims limit molding machine and for control roll ring
The method of machine is realized.Others are recorded in dependent claims and following description, when necessary independently of features described above
Preferred embodiment.
For this point, the present invention is to be based on following basic principle, i.e., (cuts sensor pair using light by constant laser rays
It is measured), can during molding (as long as Specifically workpiece is located in the workspace of molding machine) according to can to apply
The mode that the details of the effect of forming force on workpiece is monitored accurately tracks profile.According to specific design scheme,
The constant laser rays that light with corresponding camera cuts sensor can be measured and be assessed more than 500 or be more than simultaneously
1000 or even more than 3000 measurement points.In this regard, usually cutting sensor in this kind of light, (it is otherwise referred to as optical cross-section-
Profile sensor or optical cross-section-triangular measuring transducer) in have and be similar to the laser triangulation instrument with dot laser
Imaging system, however the imaging system carries rectilinear lens and flat surface sensor, wherein laser is by rectilinear lens (such as cylinder
Lens) it forms light and is incident upon on measurement object, and the light reflected is imaged by imaging len on flat surface sensor, is connect
Geometry rectification and assessment can be carried out to the laser image of imaging by.Thus it is particularly possible to accurately recognize in rolling ring
When the bending that is likely to occur or other twisted phenomenas.It can also be appreciated that can also be in other forming processes
Middle part or the profile deformation that only short time occurs accurately measure and monitor.Similarly, by shooting into large quantities
Picture point can carry out the error analysis of each measured value and measurement result.
Although substantially having been disclosed in patent document DE102010046737A1 or DE1012011000304A1
Sensor is cut using light in molding machine, but measures either carry out before shaping or after formation here, to not
Purposive intervention can be carried out during molding, particularly in view of single workpiece is to the dry of the reaction of each forming process
In advance.
Cut sensor if molding machine includes light, towards the workpiece being arranged in the workspace of molding machine, and for
Input quantity is shown relative to the molding control equipment of at least one shaping jig of workpiece setting, during molding then including at least
The molding machine of one shaping jig for playing molding to the workpiece being arranged in the workspace of molding machine just can be with simple
Mechanical structure accurately operates.
It similarly, can be true if the profile of molding workpiece by light cuts sensor to monitor in molding machine
It protects and carries out accurate operation under simple mechanical structure to control molding machine.
It is understood that the advantages of cutting the constant laser rays of sensor offer by light can also use multiple light
As accordingly when cutting sensor (especially when they are arranged across or formula is arranged in a manner of other linear independences)
Advantage.Similarly it is also contemplated that replacing straight laser rays using the corresponding fan-shaped laser beam of covering laser region.
Corresponding profile monitoring can be also used for control molding machine or machine for rolling ring, and wherein this point (can also be independently of
Others skill feature of the invention) enable corresponding machine for rolling ring to realize outstanding accurate behaviour with simple mechanical structure cost
Make.
According to above, concept " workspace " refers to the region occupied by it when being molded in molding machine when workpiece.It rolled
Journey refers to such spatial dimension, i.e., workpiece is by roll inside it, as long as and workpiece and at least one roll contact.
For the multimachine posture milling train for rolling long size work, the latter can lead to long workspace, this is because
When touching first roll of first roll stand, for the region for reaching first rack not yet of workpiece
It is to reach working region.Similarly, when the roll contact of the tail portion of workpiece and last roll stand, the region of workpiece is pressed
It is still in the workspace of corresponding shaping machine according to definition.Anyway, workspace be included in molding in workpiece by
The region that type power and the stress for existing or being applied in by forming force and in workpiece are implemented.In this way, just leaving extruder
Extruding die region or just leave the region of workpiece in roll aperture and would generally be constantly in roll-force and stress
Under effect, until it is reached at the distance remote enough relative to corresponding shaping jig.Here, this kind of region is all answered anyway
When can be regarded as working region.
In this regard it is contemplated that by this kind of light cut sensor be directly arranged between the different racks of rolling mill assembly or
Person is directly arranged at the exit of extruder, to obtain the real time information about corresponding profile, and if necessary even
The forming process of just molding workpiece is intervened.
Preferably, light cuts the shaping area that sensor plays molding towards shaping jig wherein.As described above, it is molded
Tool need not be only extruded in the region that it is contacted on workpiece.On the contrary, being applied in workpiece by forming force in workpiece
Stress can be deep into workpiece, and often also further reach the region that wherein workpiece is not contacted with shaping jig.
In this regard, shaping jig is known as shaping area to the entire forming area that workpiece works wherein.If light cuts sensor court
The surface of workpiece to the shaping area of workpiece or in shaping area, then can intuitively be occurred at the time of molding very much
Stress and active force or occur there profile variations the case where.This make it possible to very purposefully and directly at
Type process is intervened.
Such as it is also contemplated that by light cut sensor be directly aligned any one roll either behind Extruding die or
The region of front.Especially, light cut sensor can also be towards the workpiece area between the different roll stands to follow one another
Domain, and the individual profile variations of each workpiece between roll stand capture.If the roll hole between roll
Diameter is not completely turned off, then can also especially be measured between roll.
Due to the possibility that it is linearly monitored, light cuts sensor if necessary not only can be along radial direction but also can
With along the surface of axis direction monitoring workpiece, especially pair until the top edge of workpiece or lower edge (i.e. axially just
To) be monitored.In this regard, can also correspondingly axial profile be measured or is supervised during molding if necessary
It surveys.It is understood that other light can also correspondingly be arranged if necessary cuts sensor, so that monitoring is more accurate.Equally
Ground is also conceivable to the setting light at other positions and cuts sensor, and is respectively used for monitoring.
If molding machine includes at least two while vis-a-vis acting on the shaping jig on workpiece, such as roll, forging
Mold or bending mould, then being to have when light cuts region of the sensor towards the workpiece between the two shaping jigs
Profit.In general, this can provide very accurate image to the stress and power or profile variations occurred when molding.
In this as replacing or adding, light cuts sensor can be towards a shaping jig in two shaping jigs
At least one forming surface towards workpiece.This make it possible in the following manner in forming process track shaping jig relative to
The relative motion of workpiece, i.e., can not only capture forming surface if necessary can also capture workpiece near forming surface
Surface, so as to be optimized in this way to forming process.Such as when rolling the ring of taper, top can be made
It is adapted with the rotating speed of the axial roll of lower section and the circumferential speed of king roller.In contrast, poor adaptation can be due to difference
Contact velocity and lead to tensioning and second-rate rolling ring.
It is understood that when light cuts at least one forming surface towards workpiece of the sensor towards two shaping jigs
When, above-mentioned design scheme is applied particularly advantageously to accurately operate.It can also be appreciated that not only forming surface and also at
The whole region of the region of workpiece near type face and the workpiece preferably between the two shaping jigs can be correspondingly
Sensor is cut by light to monitor.In this regard it is to be appreciated that (specific performance according to the present invention) can be with complementation
Sensor is cut likes using multiple light, is only that can lead to high cost the shortcomings that the latter, it is especially hitherto known to carry
Laser point and the measurement structure of triangulation instrument cannot cut sensor by light to simplify, and no longer have by using multiple sensors
It is of such dimension that, wherein must once be weighed here due to the accuracy of measurement result.
In this regard it is understood that when the measurement accuracy based on needs or the measurement based on extension or monitoring can
When energy property shows this demand, sensor can also be cut using multiple light.Correspondingly, molding machine may include at least two courts
Sensor is cut to the light for the workpiece being arranged in the workspace of molding machine, or sensor is cut to monitor by least two light
The profile of molding workpiece in molding machine.
Especially, the two light are cut sensor and can also can be aligned across or linear independence, enabling phase
Capture the different zones with monitoring workpiece with answering.For example, different regions, such as axial profile and radial direction can be monitored simultaneously
Profile, this can for example be accomplished by the following way, i.e., it is not only radially but also axially right to cut sensor for the two light
Quasi- workpiece.It is also contemplated that across or the light that can also be aligned to linear independence is cut sensor and come to workpiece by two
A region in different positions be monitored, such as with first parallelly be aligned rolled ring light cut sensing
Device between two axial rolls surface and therebetween shaping area be monitored, and by with this vertically towards
The light of ring is cut sensor and is monitored to the curvature of the ring in the region.
In this as substituting or adding, two light can be cut sensor and be aligned in a manner of conllinear.This causes can be with
The possibility that correspondingly extension is measured and monitored.It is preferred that be aligned in the following manner, i.e., corresponding laser rays with no interval and
The mode being only overlapped on a small quantity is collinearly aligned, and thus accuracy or correspondingly extension survey can be correspondingly improved first
Measure region.It is understood that lap extends also to measured zone, wherein may be used also in lap if necessary
There is a possibility that, for extending debugging, lap can select somewhat greater if necessary.
Preferably, measurement wheel is wide during molding, so as to be obtained about forming process when compared with baseline profile
Accurate result.Especially, when being compared during molding, can be based on measuring or based on comparing to direct intervention or
Person even provides support to the adjustment process for adjusting molding machine.Correspondingly, it can also be generated from comparison result to molding
The control formula intervention of the forming process of machine, and thus controlled rolling process with comparison result be adapted.Especially it is also possible that
The intervention of adjustable type is generated, or constitutes and use the regulating loop for controlling molding machine using comparison result.
According to it is above it is understood that light cut sensor corresponding advantage can it is all with shaping jig at
Molding is played to the workpiece being arranged in the workspace of molding machine as corresponding advantage, the shaping jig in type machine.Especially
It is that corresponding forging machine, forcing press, milling train, extruder, folding machine, deep-draw machine, corrugating machine, edging machine, stretches pusher
Machine, bending machine, stenter and compressor can accordingly be advantageously provided the light being aligned accordingly and cut sensor.Particularly advantageously
Milling train or press can be correspondingly aligned.This especially can accordingly be advantageously applied to machine for rolling ring.
Machine for rolling ring can have at least a pair of of axial roll as shaping jig, wherein light cut sensor can be from roll pair
In first roll measured to second roll of roll centering.This is directly resulted in from first shaping jig until
The measurement of two shaping jigs, wherein not only can advantageously be carried out in radial roll but also in axial roll corresponding
It measures.In this way, it measures and is always carried out directly in shaping area so that more particularly to be carried out to profile during rolling
Monitoring.
It is understood that (when necessary), in this as cumulative or replacement, corresponding light, which cuts sensor, to be arranged
At other position.In this way, corresponding light cut sensor can in the non-bearing area of ring (such as in radial roll and
Between axial roll, it is being staggered in 90 degree of region about radial roll or axial roll relative to ring) towards workpiece.By
The structure of rolling stock is no longer acted in the possible roll-force applied here by roll, therefore this is other than shaping area
Workspace in carry out profile monitoring.
It is enabled control over from a roll to the measurement of another roll (they are acted on workpiece relative to one another)
Rolling to Conical ring so that contact velocity can be optimised, to offset stress in this way or poor to roll
Result processed.Similarly, can also show and assess actual profile matching degree or by actual profile and baseline profile into
Row compares.If necessary, equipment control device even can qualitatively evaluate contour rolling process by tolerance band.
Theoretically, the optical cross-section of all measurements of the operation of rolling can also be arranged in order in assessment, and thus shown
The entire forming process (especially Three-dimensional Display) developed at any time is shown.This can also optimize the entire operation of rolling.With real-time
Mode and/or quasi real time the mode of (such as every ten seconds) is measured accordingly, this is for accurately measuring and especially right
It is advantageous in adjusting molding machine；Then accurate image can be obtained, can be used for adjustment process if necessary.
Preferably, light cuts sensor arrangement in axial roll rack or at the position far from radial roll stand,
And towards workpiece.It may thereby be ensured that light cuts sensor more particularly to accurately and simply capture workpiece in its radial side,
To realize its monitoring function.
Especially, light is cut sensor and can be for example arranged on axial rack, and therefore together with axial rack must
It is radially moved when wanting so that it is accurately with respect to workpiece alignment during ring rolling.
By can on vertical Z axis unrestricted choice diameter coordinate, the mechanical structure of machine for rolling ring can be further simplified.
This allows to mechanically adjust one or more triangulation devices height, this is because by comparison can be very clever
Sensor is cut using light in ground living.
Above-mentioned design scheme is beneficial particularly with the small-sized and medium-sized machine for rolling ring of maximum 2000kN roll-forces.So
And the design scheme is also beneficial for the large-scale machine for rolling ring of maximum 45000kN roll-forces.
It is particularly useful, temperature be more than 800 degrees Celsius, preferably when temperature is more than 850 degrees Celsius from be molded and make
Correspondingly cut sensor using light in molding machine or in corresponding forming process, this is because can not contact or
Person measures than relatively straightforward mode so that can also especially be measured during molding, and if necessary can also phase
It is assessed with answering.The case where this is also applied in thermoforming formula molding machine or cuts sensor using light in thermoforming.
It is understood that when corresponding light cuts sensor correspondingly towards workpiece and the shaping jig of respective action
When, it is above-mentioned about machine for rolling ring the advantages of, as long as they be related to arrange light cut sensor or in radial roll and axial roll
Between design measure line, there are two other molding machines of shaping jig be equally beneficial for band.
It is understood that the feature of technical solution that is above-mentioned or describing in the claims if necessary can also phase
Mutually combination, so as to cumulatively realize corresponding advantage.
Description of the drawings
The present invention other the advantages of, purpose and characteristic illustrate by the description of the following examples, these embodiments
Also it is especially shown in the accompanying drawings.Wherein：
Fig. 1 shows the schematic side elevation of machine for rolling ring.
Specific implementation mode
It is shown as molding machine 1 in the accompanying drawings and the machine for rolling ring 4 that designs includes linear axes 2 that multiple fluid pressure types are adjusted,
And radial drive mechanism 6 and axial actuating mechanism 7,8, these linear axes 2 pass through (such as the hydraulic pressure of linear driving mechanism 3 respectively
Cylinder) it controls, radial drive mechanism 6 and axial actuating mechanism 7,8 be used as shaping jig accordingly by roll shaft 9 to drive respectively
25 radial roll 10 and axial roll 11,12.
In known manner, machine for rolling ring 4 includes radial roller bracket 15, and plug hoisting mechanism 16 can pass through upper traction frame
Frame 17 radially moves on it, and wherein plug hoisting mechanism 16 itself can axially move final equally as shaping jig
25 and with the plug (not shown) of radial roll 10 together radial effect.Similarly, it is that other components are provided with lower traction
Frame 18.For example, central part 19 and radially movable axial roll of the machine for rolling ring 4 shown in figure also with entrance side
Rack 14, the sliding part 20 which carries two axial rolls 11,12 and be axially movable, by the sliding part
The upper axial roll 11 in two axial rolls 11,12 can axially be set.In the present embodiment, all mobile possibilities
The linear axes 2 all adjusted via fluid pressure type are controlled by linear driving mechanism 3.
In the present embodiment, the roll shaft 9 for the radial drive mechanism 6 being connect with radial roll 10 can be constructed integrally,
Wherein in alternate embodiments it can be also configured to it is multiple, however their coaxial-types arrange.
Light is arranged at axial roll rack 14 and cuts sensor 13, towards workpiece to be rolled or can towards workpiece
With the workspace 23 for being arranged therein and being rotated wherein during rolling.In the particular embodiment, light cuts 13 court of sensor
Shaping area 24 between two axial rolls 11,12, in the shaping area these axial rolls 11,12 with its forming surface 26 at
It acts on to pattern in workpiece or ring to be rolled.
It is arranged at axial roll rack 14 by the way that light is cut sensor 13, it can be ensured that it is opposite respectively that light cuts sensor 13
Substantially constant distance is kept in workpiece and axial roll 11,12.This enable the positioning in view of axial roll rack into
The particularly simple adjusting of row.
Either machine for rolling ring 4 is made it possible to based on optical cross-section laser or is cut based on light the molding machine 1 shown in the accompanying drawings
Sensor 13 and as workpiece heat ring (its temperature is usually between 900 degrees Celsius and 1200 degrees Celsius) metal covering
The constant laser rays of upper projection, and measurement is carried out at the same time during rolling.In this way, it can be captured during rolling
To the details of differently contoured shape, and these by machinery induction roller or by laser triangulation instrument (even if here may be used
To use up to three laser triangulation instrument) it once can not possibly just obtain.
Baseline profile can also be especially compared with actual profile, this aspect for example can on a monitor into
Row so that user is organic to can be appreciated that and assess actual profile degree of conformity.By tolerance band, equipment control device can also be determined
Evaluate contour rolling situation to property.Similarly it is also contemplated that being intervened forming process based on these assessments, i.e., to molding
Either machine for rolling ring 4 is controlled or is adjusted machine 1.
Preferably, light cuts sensor 13 and either (requires) display screen or the bat of only having light to cut sensor 13 according to specific
The photograph window taken the photograph can be configured along Z-direction.It is possible thereby to obtain a kind of possibility, you can with Z-direction from
Diameter coordinate to be measured is selected by ground, because height may not necessarily be adjusted mechanically, thus significantly simplifies machinery
Structure.
By the device shown in the accompanying drawings can measure above and below contact position of the axial roll 11,12 with workpiece
It sets, thus the rotating speed of axial roll 11,12 can go out with the rotary speed of radial roll 10 or at axial roll 11,12
Existing speed is adapted.This is especially advantageous to the ring of taper, this is because it is possible thereby to obtaining better rolling result.It can be with
Understand, it, can also corresponding land productivity for cylindrical ring although being here finally a kind of simpler situation
With this advantage.
The measurement result that light cuts sensor 23 can be supplied to molding control equipment 27 as input quantity 28, the molding control
Equipment 27 sets linear driving mechanism 3 and driving mechanism 6,7,8 and plug hoisting mechanism 16 by corresponding output quantity 29
With other mechanisms, this is carried out preferably in the form of regulating loop.It is understood that molding control can also be passed through when necessary
Equipment 27 uses other input quantities.
Reference numeral：
1 molding machine
2 linear axes
3 linear driving mechanisms
4 machine for rolling ring
6 radial drive mechanisms
7 axial actuating mechanisms
8 axial actuating mechanisms
9 roll shafts
10 radial rolls
Axial roll on 11
12 times axial rolls
13 light cut sensor
14 axial roll holders
15 radial milling train holders
16 plug hoisting mechanisms
Frame is drawn on 17
18 times traction frames
The central part of 19 entrance sides
20 sliding parts
23 workspaces
24 shaping areas
25 shaping jigs
26 forming surfaces
27 molding control equipment
28 input quantities
29 output quantities
Claims (26)
- Make 1. the workpiece in molding machine (1), including at least one workspace (23) to being arranged in the molding machine (1) plays molding Shaping jig (25), which is characterized in that the molding machine (1) includes：Molding control equipment (27) carries out at least one shaping jig (25) relative to the workpiece during molding Setting；AndLight cuts sensor (13), the light cut sensor towards the workpiece and on the surface of laser line projection to workpiece with The exterior contour of the workpiece is measured, and provides the workpiece measured outer wheels to the molding control equipment (27) Exterior feature, the light cut sensor (13) during molding by the surface of laser line projection to workpiece and to detect the workpiece Exterior contour variation and monitor the reaction force generated in the workpiece during molding.
- 2. molding machine (1) as described in claim 1, which is characterized in that the light cuts sensor (13) towards shaping area (24), At least one shaping jig (25) described in the shaping area plays molding.
- 3. molding machine (1) as claimed in claim 2, which is characterized in that the molding machine (1) has at least two while and phase Against the shaping jig (25) of effect on the workpiece, and the light cuts sensor (13) towards positioned at described at least two The region of workpiece between shaping jig (25), and/or at least one direction towards at least two shaping jig (25) The forming surface (26) of the workpiece.
- 4. molding machine (1) as claimed in claim 2, which is characterized in that the molding machine (1) has at least two while and phase Against the shaping jig (25) of effect on the workpiece, and the light cuts sensor (13) towards at least two molding At least one forming surface (26) towards the workpiece of tool (25).
- 5. the molding machine (1) as described in any one of Claims 1-4, which is characterized in that the molding machine (1) includes extremely Few two light cut sensor (13), towards the workpiece being arranged in the workspace (23) of the molding machine (1).
- 6. molding machine (1) as claimed in claim 5, which is characterized in that at least two light is cut sensor (13) and is orientated So that the laser rays that at least two light cuts sensor (13) intersects or does not intersect.
- 7. molding machine (1) as claimed in claim 6, which is characterized in that at least two light cuts sensor (13) in level Towards the workpiece on direction and vertical direction.
- 8. molding machine (1) as claimed in claim 5, which is characterized in that at least two light cuts sensor (13) with conllinear Mode orient.
- 9. molding machine (1) as claimed in claim 5, which is characterized in that at least two light cuts sensor (13) not have It is spaced and the mode being only overlapped on a small quantity orients.
- 10. the molding machine (1) as described in any one of claims 1 to 3, which is characterized in that the molding machine (1) is milling train Or extruder and/or the molding machine (1) are the molding machines of thermoforming formula.
- 11. molding machine (1) as claimed in claim 10, which is characterized in that the milling train is machine for rolling ring (4).
- 12. molding machine (1) as claimed in claim 11, which is characterized in that there is the machine for rolling ring (4) at least a pair of of radial direction to roll Roller (10) and/or at least a pair of of axial roll (11,12) are used as shaping jig (25), and the light cuts sensor (13) from rolling First roll of roller centering is measured to second roll of roll centering.
- 13. molding machine (1) as claimed in claim 11, which is characterized in that the light cuts sensor (13) and is arranged in described roll In the axial roll rack (14) of ring machine (4) and towards the workpiece.
- 14. molding machine (1) as claimed in claim 11, which is characterized in that the light cuts sensor (13) and is arranged in radial roll The opposite side of roller frame (15) and towards the workpiece.
- 15. the method for controlling molding machine (1), which is characterized in that cut sensor (13) by light to monitor in the molding The profile of molding workpiece in machine (1), and monitored by the variation of the exterior contour of the detection workpiece during molding The reaction force generated in the workpiece during molding.
- 16. method as claimed in claim 15, which is characterized in that measure the exterior contour, and and base during molding Quasi- profile is compared, and generates tune from the comparison result of exterior contour and baseline profile in the forming process of molding machine (1) The intervention of section formula.
- 17. method as claimed in claim 15, which is characterized in that measure the exterior contour, and and base during molding Quasi- profile is compared, wherein the comparison of exterior contour and baseline profile is also executed during molding, the molding in molding machine (1) The intervention of adjustable type is generated from the comparison result of exterior contour and baseline profile in the process.
- 18. the method as described in claim 16 or 17, which is characterized in that cut sensor (13) by least two light to monitor The profile of molding workpiece in the molding machine (1).
- 19. method as claimed in claim 18, which is characterized in that at least two light is cut sensor (13) and is oriented such that The laser rays that at least two light cuts sensor (13) intersects or does not intersect.
- 20. method as claimed in claim 19, which is characterized in that at least two light cuts sensor (13) in the horizontal direction With on vertical direction towards the workpiece.
- 21. method as claimed in claim 18, which is characterized in that described two light cut sensor (13) collinearly, between no Every and the only mode that is overlapped on a small quantity orient.
- 22. the method as described in any one of claim 16 to 21, which is characterized in that the molding machine (1) be milling train or Person's extruder and/or the molding machine (1) are the molding machines of thermoforming formula.
- 23. method as claimed in claim 22, which is characterized in that the milling train is machine for rolling ring (4).
- 24. method as claimed in claim 23, which is characterized in that the machine for rolling ring (4) has at least a pair of radial roll (10) and/or at least a pair of of axial roll (11,12) is used as shaping jig (25), and the light cuts sensor (13) from roll First roll of centering is measured to second roll of roll centering.
- 25. method as claimed in claim 23, which is characterized in that the light cuts sensor (13) and is arranged in the machine for rolling ring (4) in axial roll rack (14) and towards the workpiece.
- 26. method as claimed in claim 23, which is characterized in that the light cuts sensor (13) and is arranged in radial roll stand (15) opposite side and towards the workpiece.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014005333 | 2014-04-11 | ||
| DE102014005333.4 | 2014-04-11 | ||
| CN201510173351.7A CN104972027A (en) | 2014-04-11 | 2015-04-13 | Forming machine and method for controlling a forming machine |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510173351.7A Division CN104972027A (en) | 2014-04-11 | 2015-04-13 | Forming machine and method for controlling a forming machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108714673A true CN108714673A (en) | 2018-10-30 |
Family
ID=53174789
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510173351.7A Pending CN104972027A (en) | 2014-04-11 | 2015-04-13 | Forming machine and method for controlling a forming machine |
| CN201810377557.5A Pending CN108714673A (en) | 2014-04-11 | 2015-04-13 | Molding machine and method for controlling molding machine |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510173351.7A Pending CN104972027A (en) | 2014-04-11 | 2015-04-13 | Forming machine and method for controlling a forming machine |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US10065234B2 (en) |
| EP (1) | EP2937155B1 (en) |
| JP (1) | JP6065242B2 (en) |
| KR (2) | KR20150118044A (en) |
| CN (2) | CN104972027A (en) |
| ES (1) | ES2869049T3 (en) |
| MX (1) | MX365451B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112264562A (en) * | 2020-12-15 | 2021-01-26 | 中国重型机械研究院股份公司 | Real-time diameter detection method and detection system for ring rolling mill in rolling process |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105522081B (en) * | 2016-01-18 | 2018-07-27 | 山西双环重工集团有限公司 | Ring rolls activity material supporting rack |
| DE102016101939A1 (en) | 2016-02-04 | 2017-08-10 | Sms Group Gmbh | Ring rolling machine and method for lifting and lowering the mandrel roll of a ring rolling machine |
| EP3300814A1 (en) * | 2016-09-30 | 2018-04-04 | Forge Pat GmbH | Ring rolling mill with conformation rolls and process for controlling the position of a roll of such a rolling mill |
| JP6159005B1 (en) * | 2016-11-21 | 2017-07-05 | 株式会社中田製作所 | Welded pipe manufacturing apparatus and welded pipe manufacturing method |
| US10807147B2 (en) * | 2017-01-06 | 2020-10-20 | Korvis Asia Private Limited | Platform for constraining a workpiece on an x-y stage |
| DE102017008449A1 (en) * | 2017-09-08 | 2019-03-14 | Schuler Pressen Gmbh | Radial-axial ring rolling mill for rolling a ring |
| CN108160718B (en) * | 2017-12-26 | 2019-09-24 | 山西大学 | Outside Diameter Inspection System in a kind of horizontal operation of rolling of large size shell ring |
| AT521623B1 (en) * | 2018-10-16 | 2020-03-15 | Trumpf Maschinen Austria Gmbh & Co Kg | Method for providing at least two groups of bending tools |
| IT202100025964A1 (en) * | 2021-10-11 | 2023-04-11 | Project Group Srl | CONTROL METHOD OF AN AXIAL RADIAL MILL |
| IT202100025973A1 (en) * | 2021-10-11 | 2023-04-11 | Project Group Srl | CONTROL METHOD OF AN AXIAL RADIAL ROLLING MILL WITH VARIABLE COEFFICIENT REGULATORS |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04182005A (en) * | 1990-11-14 | 1992-06-29 | Mitsubishi Materials Corp | Method for controlling rolling of ring-like member |
| EP1245302A1 (en) * | 2001-03-27 | 2002-10-02 | Dreistern-Werk Maschinenbau GmbH & co. KG | Profilingmachine with a plurality of in-line arranged forming stations |
| DE10231430A1 (en) * | 2002-07-11 | 2004-02-12 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Automatic forming of sheet materials uses a programmed robot held hammer that repeatedly deforms the sheet into an impression in a die block |
| CN101675316A (en) * | 2007-04-04 | 2010-03-17 | 仲巴赫电子公司 | Method for measuring the shpericity of spherical profiles |
| CN102553985A (en) * | 2012-01-10 | 2012-07-11 | 北方工业大学 | Variable cross-section cold-bending forming contour detection and control device and method |
| CN202387794U (en) * | 2012-01-10 | 2012-08-22 | 北方工业大学 | Device for detecting and controlling variable-section cold-bending formed contour |
| CN102869477A (en) * | 2010-03-04 | 2013-01-09 | 施耐德两合公司 | Autocalibration |
| WO2013041083A2 (en) * | 2011-09-23 | 2013-03-28 | Sms Meer Gmbh | Rolling mill and rolling method |
| CN103328923A (en) * | 2011-01-25 | 2013-09-25 | 金属板材技术解决方案股份有限公司 | Calibration of laser light section sensors during simultaneous measurement |
Family Cites Families (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1188544B (en) | 1961-12-22 | 1965-03-11 | Wagner & Co Werkzeugmaschinenf | Four-roll ring rolling mill with automatically adjustable axial rolls |
| DE1752887C3 (en) | 1968-07-31 | 1974-06-06 | J. Banning Ag, 4700 Hamm | Four-roll ring rolling mill |
| DE2222608C2 (en) | 1972-05-09 | 1984-07-05 | Thyssen Industrie Ag, 4300 Essen | Ring rolling mill |
| DE2504969A1 (en) | 1975-02-06 | 1976-08-19 | Horst Schenk | Annular workpiece rolling mill - forms blank in revolving guide by radially acting mandrel roll and axial rolls |
| SU668142A1 (en) | 1977-04-01 | 1985-06-23 | Украинский Государственный Институт По Проектированию Металлургических Заводов | Device for checking axis of multiple-stand mill |
| JPS6210919U (en) | 1985-07-08 | 1987-01-23 | ||
| JPS62101333A (en) | 1985-10-28 | 1987-05-11 | Kobe Steel Ltd | Speed control device for rotary plastic working device |
| JPS6462238A (en) | 1987-09-01 | 1989-03-08 | Kyoei Steel Ltd | Ring body forming device |
| JPH0626016Y2 (en) | 1989-04-07 | 1994-07-06 | 工業技術院長 | Electrical conductor penetration device |
| DE3921094A1 (en) | 1989-06-28 | 1991-01-10 | Thyssen Industrie | Machining of inside and outside profiles of workpieces - by machine tool with mandrel which is guided radially and axially |
| DE3923275A1 (en) | 1989-07-14 | 1991-01-24 | Fraunhofer Ges Forschung | Optical system for measuring workpiece profile in roller gap - has light beam directed tangentially to profile and passing through schlieren diaphragm to imaging system |
| JP2859446B2 (en) | 1990-12-03 | 1999-02-17 | 日立金属株式会社 | Ring rolling mill |
| JPH06153200A (en) | 1992-11-09 | 1994-05-31 | Sumitomo Metal Ind Ltd | Measuring equipment for center of mill for drilling mill |
| DE4312565C2 (en) * | 1993-04-17 | 2001-12-13 | Trumpf Maschinen Austria Gmbh | Bending machine for bending flat workpieces |
| JP2994535B2 (en) * | 1993-09-14 | 1999-12-27 | 住友金属工業株式会社 | Hot steel profile measuring device |
| JP3273312B2 (en) | 1997-12-01 | 2002-04-08 | 日本鋼管株式会社 | Hydraulic rolling mill |
| JP3376913B2 (en) * | 1998-04-03 | 2003-02-17 | 日本鋼管株式会社 | Rolling method for H-section steel |
| JP2000288616A (en) * | 1999-04-12 | 2000-10-17 | Kawasaki Steel Corp | Manufacture of seamless steel tube |
| JP2002210503A (en) | 2001-01-18 | 2002-07-30 | Nkk Corp | Rolling method with ring rolling mill and controller |
| US7679757B1 (en) | 2002-10-31 | 2010-03-16 | BYTEWISE Measurement Systems LLC. | Non-contact profile measurement system |
| JP4300518B2 (en) | 2003-10-07 | 2009-07-22 | 住友金属工業株式会社 | Multi-stage rolling mill misalignment measuring device |
| DE102006057040B3 (en) | 2006-12-04 | 2008-05-08 | Siemens Ag | Roller gap measuring method for e.g. reducing roll stand of cold rolling mill, involves setting thickness of each roller packet in relation to distance of fixed point from band plane of metal band to be rolled with respect to fixed point |
| JP4910754B2 (en) * | 2007-02-20 | 2012-04-04 | パルステック工業株式会社 | 3D shape measuring device |
| JP5448303B2 (en) | 2007-03-29 | 2014-03-19 | Ｊｆｅスチール株式会社 | Roller misalignment measuring device |
| US7596979B2 (en) | 2007-11-01 | 2009-10-06 | Firth Rixson | Ring mill apparatus and method |
| CN101934291B (en) | 2009-06-30 | 2014-02-19 | 上海宝钢工业检测公司 | Center-aligning method of high-speed wire stock finishing mill |
| JP2011038558A (en) | 2009-08-07 | 2011-02-24 | Nsd Corp | Electric fluid pressure actuator device |
| DE102010046737B4 (en) | 2010-09-28 | 2016-10-27 | Mag Ias Gmbh | Method for applying profiling by means of cold rolling in a cold rolling machine with control |
| DE202010014708U1 (en) | 2010-10-25 | 2011-01-20 | C. Groene Consulting, Unip Lda | Axial / radial ring rolling mill |
| CN102319842B (en) * | 2011-05-30 | 2013-06-05 | 燕山大学 | Outer diameter outline on-line measuring device for large-scale cylindrical shell section mill |
| JP5890987B2 (en) | 2011-09-15 | 2016-03-22 | 住友精密工業株式会社 | Electric hydraulic actuator |
| DE102013109157B4 (en) | 2013-08-23 | 2016-06-09 | Fette Compacting Gmbh | Press for the production of compacts of powdered material |
| CN103567336A (en) * | 2013-11-22 | 2014-02-12 | 重庆大学 | Ring rolling mill for rolling production of seamless ring piece with special-shaped cross section |
| JP6170857B2 (en) * | 2014-03-19 | 2017-07-26 | 株式会社神戸製鋼所 | Ring material shape measuring method and shape measuring device |
-
2015
- 2015-04-07 ES ES15162656T patent/ES2869049T3/en active Active
- 2015-04-07 EP EP15162656.1A patent/EP2937155B1/en active Active
- 2015-04-09 MX MX2015004510A patent/MX365451B/en active IP Right Grant
- 2015-04-10 US US14/683,226 patent/US10065234B2/en active Active
- 2015-04-10 JP JP2015081224A patent/JP6065242B2/en active Active
- 2015-04-10 KR KR1020150050585A patent/KR20150118044A/en not_active Application Discontinuation
- 2015-04-13 CN CN201510173351.7A patent/CN104972027A/en active Pending
- 2015-04-13 CN CN201810377557.5A patent/CN108714673A/en active Pending
-
2017
- 2017-02-15 KR KR1020170020609A patent/KR20170020408A/en active Search and Examination
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04182005A (en) * | 1990-11-14 | 1992-06-29 | Mitsubishi Materials Corp | Method for controlling rolling of ring-like member |
| EP1245302A1 (en) * | 2001-03-27 | 2002-10-02 | Dreistern-Werk Maschinenbau GmbH & co. KG | Profilingmachine with a plurality of in-line arranged forming stations |
| DE10231430A1 (en) * | 2002-07-11 | 2004-02-12 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Automatic forming of sheet materials uses a programmed robot held hammer that repeatedly deforms the sheet into an impression in a die block |
| CN101675316A (en) * | 2007-04-04 | 2010-03-17 | 仲巴赫电子公司 | Method for measuring the shpericity of spherical profiles |
| CN102869477A (en) * | 2010-03-04 | 2013-01-09 | 施耐德两合公司 | Autocalibration |
| CN103328923A (en) * | 2011-01-25 | 2013-09-25 | 金属板材技术解决方案股份有限公司 | Calibration of laser light section sensors during simultaneous measurement |
| WO2013041083A2 (en) * | 2011-09-23 | 2013-03-28 | Sms Meer Gmbh | Rolling mill and rolling method |
| CN102553985A (en) * | 2012-01-10 | 2012-07-11 | 北方工业大学 | Variable cross-section cold-bending forming contour detection and control device and method |
| CN202387794U (en) * | 2012-01-10 | 2012-08-22 | 北方工业大学 | Device for detecting and controlling variable-section cold-bending formed contour |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112264562A (en) * | 2020-12-15 | 2021-01-26 | 中国重型机械研究院股份公司 | Real-time diameter detection method and detection system for ring rolling mill in rolling process |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20170020408A (en) | 2017-02-22 |
| US20150290700A1 (en) | 2015-10-15 |
| ES2869049T3 (en) | 2021-10-22 |
| US10065234B2 (en) | 2018-09-04 |
| KR20150118044A (en) | 2015-10-21 |
| JP6065242B2 (en) | 2017-01-25 |
| MX2015004510A (en) | 2015-12-08 |
| CN104972027A (en) | 2015-10-14 |
| MX365451B (en) | 2019-06-04 |
| EP2937155A1 (en) | 2015-10-28 |
| EP2937155B1 (en) | 2021-04-07 |
| JP2015202522A (en) | 2015-11-16 |
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